Process for operating a shearing centrifuge
CA 2051122 A1 · Owner: Stahl, Werner · Inventors: Stahl, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pusher centrifuge, in which the pusher plate is moved cyclicly relative to a perforated drum in the axial direction in an advanced and a retracted position in a forward or a reverse movement can be operated with a higher, throughput if the drum is supplied with the mixture after leaving the advanced position of the pusher plate and up to the start of the following forward movement of said pusher plate. The mixture throughput can also be increased in that a smaller mixture quantity is supplied to the drum before reaching the advanced pusher plate position than after leaving the advanced pusher plate position.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 12, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 12, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.